I have an octahedron rendered in 2d. in 3d each face is an equilateral triangle, however as it is rendered in 2d, the faces are warped and are no longer physically equilateral. I have a new equilateral triangle with a design imbedded using nodes, how could I project this triangle onto another on the 2d rendered octahedron?
attached is an image showing the octahedron, a duplicated face of the octahedron (top) and an equilateral triangle with the design I have (bottom). I want to project the bottom triangle onto the top one.
the closest ive gotten to getting this to work is using the Perspective/Envelope Live Path Effect, but that only allows for 4 points handles, one in each corner and wont allow you to delete or edit where they are before transforming.
you sir are a genius, although its not perfect you lead me in the right direction, I used pretty much the same technique although with some tweaks to make it perfect, since all the triangles on the octahedron are skewed, although it doesnt seem obvious with the large one its pretty clear and exaggerated with the smaller ones on the side, the lack of skewing when you adjusted the triangle height is why it didnt fit perfectly when moved on to the octahedron.
The last step in the GIF is "skewing" BTW. I usually always try to visualise cases like that in 3d with full control over FoV, Projection like orthographic or perspective cameras etc:
Beginners' Questions projecting a triangle onto a warped triangle
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I have an octahedron rendered in 2d. in 3d each face is an equilateral triangle, however as it is rendered in 2d, the faces are warped and are no longer physically equilateral. I have a new equilateral triangle with a design imbedded using nodes, how could I project this triangle onto another on the 2d rendered octahedron?
attached is an image showing the octahedron, a duplicated face of the octahedron (top) and an equilateral triangle with the design I have (bottom). I want to project the bottom triangle onto the top one.
the closest ive gotten to getting this to work is using the Perspective/Envelope Live Path Effect, but that only allows for 4 points handles, one in each corner and wont allow you to delete or edit where they are before transforming.
Perhaps like so:
you sir are a genius, although its not perfect you lead me in the right direction, I used pretty much the same technique although with some tweaks to make it perfect, since all the triangles on the octahedron are skewed, although it doesnt seem obvious with the large one its pretty clear and exaggerated with the smaller ones on the side, the lack of skewing when you adjusted the triangle height is why it didnt fit perfectly when moved on to the octahedron.
The last step in the GIF is "skewing" BTW. I usually always try to visualise cases like that in 3d with full control over FoV, Projection like orthographic or perspective cameras etc: